diff --git a/src/Charts2/Components/metricsService.jsx b/src/Charts2/Components/metricsService.jsx
index 60a58e9..f549d27 100644
--- a/src/Charts2/Components/metricsService.jsx
+++ b/src/Charts2/Components/metricsService.jsx
@@ -2,16 +2,28 @@ class MetricsService {
   constructor() {
     this.baseUrl = '/metrics-ws';
     this.socket = null;
-    this.subscriptions = new Map();
-    this.pendingRequests = new Map();
+    this.subscriptions = new Map(); // Хранит подписки на real-time данные
+    this.pendingRequests = new Map(); // Для разовых запросов
     this.reconnectAttempts = 0;
     this.maxReconnectAttempts = 5;
     this.reconnectDelay = 5000;
+    this.connectionCallbacks = new Set(); // Колбэки для событий подключения
 
     window.addEventListener('beforeunload', () => this.cleanupAll());
     window.addEventListener('pagehide', () => this.cleanupAll());
   }
 
+  // Новый метод для отслеживания состояния подключения
+  onConnectionChange(callback) {
+    this.connectionCallbacks.add(callback);
+    return () => this.connectionCallbacks.delete(callback);
+  }
+
+  // Уведомление всех подписчиков о изменении состояния
+  notifyConnectionChange(connected) {
+    this.connectionCallbacks.forEach(cb => cb(connected));
+  }
+
   handleServerMessage(msg) {
     try {
       if (!msg || typeof msg !== 'object') {
@@ -22,25 +34,25 @@ class MetricsService {
       const { event, data, requestId } = msg;
 
       switch (event) {
-        case 'metrics-data':
-          if (requestId && this.pendingRequests.has(requestId)) {
-            const { resolve } = this.pendingRequests.get(requestId);
-            resolve(data);
-            this.pendingRequests.delete(requestId);
-          } else {
-            const metricKey = data.metric;
-            const callbacks = this.subscriptions.get(metricKey) || [];
-            callbacks.forEach(cb => cb(data));
-          }
-
+        case 'connected':
+          console.log('Server connection confirmed:', data);
+          this.notifyConnectionChange(true);
           break;
 
-        case 'metrics-error':
-          if (requestId && this.pendingRequests.has(requestId)) {
-            const { reject } = this.pendingRequests.get(requestId);
-            reject(new Error(data.error));
-            this.pendingRequests.delete(requestId);
-          }
+        case 'realtime-data':
+          this.handleRealtimeData(data, requestId);
+          break;
+
+        case 'historical-data':
+          this.handleHistoricalData(data, requestId);
+          break;
+
+        case 'current-data':
+          this.handleCurrentData(data, requestId);
+          break;
+
+        case 'error':
+          this.handleError(data, requestId);
           break;
 
         default:
@@ -51,6 +63,54 @@ class MetricsService {
     }
   }
 
+  handleRealtimeData(data, requestId) {
+    const { metric, filters, data: metricsData, type } = data;
+    const metricKey = this.getMetricKey(metric, filters);
+
+    if (requestId && this.pendingRequests.has(requestId)) {
+      // Это ответ на разовый запрос
+      const { resolve } = this.pendingRequests.get(requestId);
+      resolve(metricsData);
+      this.pendingRequests.delete(requestId);
+    } else {
+      // Это обновление по подписке
+      const callbacks = this.subscriptions.get(metricKey) || [];
+      callbacks.forEach(cb => cb({
+        data: metricsData,
+        type: type || 'update',
+        metric,
+        filters,
+        timestamp: Date.now()
+      }));
+    }
+  }
+
+  handleHistoricalData(data, requestId) {
+    if (requestId && this.pendingRequests.has(requestId)) {
+      const { resolve } = this.pendingRequests.get(requestId);
+      resolve(data.data || data);
+      this.pendingRequests.delete(requestId);
+    }
+  }
+
+  handleCurrentData(data, requestId) {
+    if (requestId && this.pendingRequests.has(requestId)) {
+      const { resolve } = this.pendingRequests.get(requestId);
+      resolve(data.data || data);
+      this.pendingRequests.delete(requestId);
+    }
+  }
+
+  handleError(data, requestId) {
+    if (requestId && this.pendingRequests.has(requestId)) {
+      const { reject } = this.pendingRequests.get(requestId);
+      reject(new Error(data.error || 'Unknown error'));
+      this.pendingRequests.delete(requestId);
+    } else {
+      console.error('Server error:', data.error);
+    }
+  }
+
   connectWebSocket() {
     if (this.socket && (this.socket.readyState === WebSocket.OPEN || this.socket.readyState === WebSocket.CONNECTING)) {
       return;
@@ -58,25 +118,27 @@ class MetricsService {
 
     console.log('Connecting WebSocket...');
     this.socket = new WebSocket(this.baseUrl);
+    this.notifyConnectionChange(false);
 
     this.socket.addEventListener('open', () => {
       console.log('WebSocket connected');
       this.reconnectAttempts = 0;
-      this.subscriptions.forEach((_, metricKey) => {
-        const filters = this.parseFiltersFromKey(metricKey);
-        const [metric] = metricKey.split('?');
-        this.sendMessage('subscribe-metric', { metric, filters });
-      });
+      this.notifyConnectionChange(true);
+
+      // Переподписываемся на все активные подписки
+      this.resubscribeAll();
     });
 
-    this.socket.addEventListener('close', () => {
-      console.log('WebSocket disconnected');
+    this.socket.addEventListener('close', (event) => {
+      console.log('WebSocket disconnected', event.code, event.reason);
       this.socket = null;
+      this.notifyConnectionChange(false);
       this.scheduleReconnect();
     });
 
     this.socket.addEventListener('error', (err) => {
       console.error('WebSocket error:', err);
+      this.notifyConnectionChange(false);
     });
 
     this.socket.addEventListener('message', (event) => {
@@ -89,6 +151,18 @@ class MetricsService {
     });
   }
 
+  // Переподписка на все активные подписки после переподключения
+  resubscribeAll() {
+    this.subscriptions.forEach((_, metricKey) => {
+      const { metric, filters } = this.parseMetricKey(metricKey);
+      this.sendMessage('subscribe-realtime', {
+        metric,
+        filters,
+        interval: 10000 // Дефолтный интервал
+      });
+    });
+  }
+
   scheduleReconnect() {
     if (this.reconnectAttempts >= this.maxReconnectAttempts) {
       console.warn('Max reconnect attempts reached');
@@ -104,12 +178,13 @@ class MetricsService {
     }, delay);
   }
 
-  sendMessage(event, data) {
+  sendMessage(event, data, requestId) {
     if (!this.socket || this.socket.readyState !== WebSocket.OPEN) {
       if (this.socket && this.socket.readyState === WebSocket.CONNECTING) {
+        // Ждем открытия соединения
         const waitForOpen = () => {
           if (this.socket.readyState === WebSocket.OPEN) {
-            this.socket.send(JSON.stringify({ event, data }));
+            this.doSendMessage(event, data, requestId);
           } else if (this.socket.readyState === WebSocket.CONNECTING) {
             setTimeout(waitForOpen, 100);
           }
@@ -118,29 +193,77 @@ class MetricsService {
       } else {
         console.warn('WebSocket not connected, cannot send:', event);
         this.connectWebSocket();
+        // Сохраняем сообщение для отправки после подключения
+        setTimeout(() => {
+          if (this.socket?.readyState === WebSocket.OPEN) {
+            this.doSendMessage(event, data, requestId);
+          }
+        }, 1000);
       }
       return;
     }
 
-    this.socket.send(JSON.stringify({ event, data }));
+    this.doSendMessage(event, data, requestId);
   }
 
-  async fetchMetricsRange(metric, start, end, step = 15, filters = {}) {
+  doSendMessage(event, data, requestId) {
+    const message = requestId ? { event, data, requestId } : { event, data };
+    this.socket.send(JSON.stringify(message));
+  }
+
+  // ============ ПУБЛИЧНЫЕ МЕТОДЫ ============
+
+  // Подписка на real-time данные
+  subscribeToMetric(metric, filters = {}, callback, interval = 10000) {
+    this.connectWebSocket();
+
+    const metricKey = this.getMetricKey(metric, filters);
+
+    if (!this.subscriptions.has(metricKey)) {
+      this.subscriptions.set(metricKey, []);
+
+      this.sendMessage('subscribe-realtime', {
+        metric,
+        filters,
+        interval
+      });
+    }
+
+    const callbacks = this.subscriptions.get(metricKey);
+    callbacks.push(callback);
+
+    // Возвращаем функцию для отписки
+    return () => this.unsubscribeFromMetric(metric, filters, callback);
+  }
+
+  // Отписка от real-time данных
+  unsubscribeFromMetric(metric, filters = {}, callback) {
+    const metricKey = this.getMetricKey(metric, filters);
+    const callbacks = this.subscriptions.get(metricKey) || [];
+    const filtered = callbacks.filter(cb => cb !== callback);
+
+    if (filtered.length === 0) {
+      this.subscriptions.delete(metricKey);
+      this.sendMessage('unsubscribe-realtime', { metric, filters });
+    } else {
+      this.subscriptions.set(metricKey, filtered);
+    }
+  }
+
+  // Запрос исторических данных (разовый)
+  async fetchMetricsRange(metric, start, end, step = 60, filters = {}) {
     return new Promise((resolve, reject) => {
       this.connectWebSocket();
-      const requestId = `range-${Date.now()}`;
+      const requestId = `historical-${Date.now()}-${Math.random().toString(36).slice(2)}`;
 
-      // Таймаут для очистки
       const timeout = setTimeout(() => {
-        reject(new Error('Request timeout'));
+        reject(new Error('Historical data request timeout'));
         this.pendingRequests.delete(requestId);
-      }, 12000);
+      }, 30000); // 30 секунд таймаут для historical данных
 
       this.pendingRequests.set(requestId, {
-        resolve: (responseData) => {
+        resolve: (data) => {
           clearTimeout(timeout);
-          const data = Array.isArray(responseData) ? responseData :
-            (responseData?.data || []);
           resolve(data);
         },
         reject: (err) => {
@@ -149,64 +272,109 @@ class MetricsService {
         }
       });
 
-      this.sendMessage('get-metrics', {
-        metric, start, end, step, filters, isRangeQuery: true, requestId
-      });
+      this.sendMessage('get-historical', {
+        metric,
+        start: Math.floor(start / 1000) * 1000, // Ensure milliseconds
+        end: Math.floor(end / 1000) * 1000,
+        step,
+        filters
+      }, requestId);
     });
   }
 
-  subscribeToMetric(metricKey, callback, interval = 5000, filters = {}) {
-    this.connectWebSocket();
+  // Запрос текущих данных (разовый)
+  async fetchCurrentMetrics(metric, filters = {}) {
+    return new Promise((resolve, reject) => {
+      this.connectWebSocket();
+      const requestId = `current-${Date.now()}-${Math.random().toString(36).slice(2)}`;
 
-    if (!this.subscriptions.has(metricKey)) {
-      this.subscriptions.set(metricKey, []);
-      const [metric] = metricKey.split('?');
-      this.sendMessage('subscribe-metric', { metric, interval, filters });
-    }
+      const timeout = setTimeout(() => {
+        reject(new Error('Current data request timeout'));
+        this.pendingRequests.delete(requestId);
+      }, 10000); // 10 секунд таймаут
 
-    const callbacks = this.subscriptions.get(metricKey);
-    callbacks.push(callback);
+      this.pendingRequests.set(requestId, {
+        resolve: (data) => {
+          clearTimeout(timeout);
+          resolve(data);
+        },
+        reject: (err) => {
+          clearTimeout(timeout);
+          reject(err);
+        }
+      });
 
-    return () => this.unsubscribeFromMetric(metricKey, callback);
+      this.sendMessage('get-current', {
+        metric,
+        filters
+      }, requestId);
+    });
   }
 
-  unsubscribeFromMetric(metricKey, callback) {
-    const callbacks = this.subscriptions.get(metricKey) || [];
-    const filtered = callbacks.filter(cb => cb !== callback);
-
-    if (filtered.length === 0) {
-      this.subscriptions.delete(metricKey);
-      const [metric] = metricKey.split('?');
-      this.sendMessage('unsubscribe-metric', { metric });
-    } else {
-      this.subscriptions.set(metricKey, filtered);
-    }
+  // Отписка от всех подписок
+  unsubscribeAll() {
+    this.sendMessage('unsubscribe-all', {});
+    this.subscriptions.clear();
   }
 
-  parseFiltersFromKey(metricKey) {
-    const parts = metricKey.split('?');
-    if (parts.length < 2) return {};
-    return parts[1].split('&').reduce((acc, pair) => {
-      const [key, value] = pair.split('=');
-      if (key && value) acc[key] = value;
-      return acc;
-    }, {});
+  // ============ ВСПОМОГАТЕЛЬНЫЕ МЕТОДЫ ============
+
+  getMetricKey(metric, filters) {
+    const sortedKeys = Object.keys(filters).sort();
+    const filterString = sortedKeys
+      .map(key => `${key}=${encodeURIComponent(filters[key])}`)
+      .join('&');
+
+    return filterString ? `${metric}?${filterString}` : metric;
+  }
+
+  parseMetricKey(metricKey) {
+    const [metric, query] = metricKey.split('?');
+    const filters = {};
+
+    if (query) {
+      query.split('&').forEach(pair => {
+        const [key, value] = pair.split('=');
+        if (key && value) {
+          filters[decodeURIComponent(key)] = decodeURIComponent(value);
+        }
+      });
+    }
+
+    return { metric, filters };
   }
 
   cleanupAll() {
-    this.sendMessage('unsubscribe-all', {});
-    this.subscriptions.clear();
+    this.unsubscribeAll();
     this.disconnectWebSocket();
   }
 
   disconnectWebSocket() {
     if (this.socket) {
-      this.socket.close();
+      this.socket.close(1000, 'Client disconnected');
       this.socket = null;
     }
+    this.notifyConnectionChange(false);
+  }
+
+  // Проверка состояния подключения
+  isConnected() {
+    return this.socket?.readyState === WebSocket.OPEN;
+  }
+
+  // Получение текущего состояния
+  getConnectionState() {
+    return this.socket ? this.socket.readyState : WebSocket.CLOSED;
   }
 }
 
+// Создаем глобальный экземпляр
 const metricsService = new MetricsService();
+
+// Экспорт для использования в модульной системе
 export default metricsService;
 
+// Глобальный экспорт для прямого использования в браузере
+if (typeof window !== 'undefined') {
+  window.MetricsService = metricsService;
+}
\ No newline at end of file
diff --git a/src/Charts2/PrometheusChart.jsx b/src/Charts2/PrometheusChart.jsx
index f3ea659..8240209 100644
--- a/src/Charts2/PrometheusChart.jsx
+++ b/src/Charts2/PrometheusChart.jsx
@@ -31,9 +31,11 @@ const PrometheusChart = ({ metricInfo, chartHeight = 580 }) => {
     const [showLogs, setShowLogs] = useState(false);
     const [statusLogs, setStatusLogs] = useState([]);
     const MAX_POINTS = 50;
-    const TIME_WINDOW_MS = 3600 * 1000; 
+    const TIME_WINDOW_MS = 3600 * 1000;
 
 
+    // Эта функция может больше не понадобиться, так как
+    // сервис сам генерирует ключи, но оставьте для совместимости
     const getSubscriptionKey = () => {
         const filterParts = [];
         if (device) filterParts.push(`device=${encodeURIComponent(device)}`);
@@ -63,7 +65,7 @@ const PrometheusChart = ({ metricInfo, chartHeight = 580 }) => {
                 source_id: item.source_id || null,
                 description: item.description || description
             };
-        }).filter(Boolean) 
+        }).filter(Boolean)
             .sort((a, b) => a.timestamp - b.timestamp);
     };
 
@@ -120,10 +122,12 @@ const PrometheusChart = ({ metricInfo, chartHeight = 580 }) => {
             };
 
             const step = calculateStep(start, end);
+
+            // Используем новый метод для исторических данных
             const data = await metricsService.fetchMetricsRange(
                 metricName,
-                Math.floor(start.getTime() / 1000),
-                Math.floor(end.getTime() / 1000),
+                start.getTime(), // Теперь передаем timestamp в миллисекундах
+                end.getTime(),
                 step,
                 extendedFilters
             );
@@ -132,7 +136,7 @@ const PrometheusChart = ({ metricInfo, chartHeight = 580 }) => {
                 .sort((a, b) => a.timestamp - b.timestamp);
 
             const limitedData = formattedData.length > MAX_POINTS
-                ? formattedData.slice(-MAX_POINTS)
+                ? downsampleData(formattedData, MAX_POINTS)
                 : formattedData;
 
             if (limitedData.length > 0) {
@@ -163,12 +167,15 @@ const PrometheusChart = ({ metricInfo, chartHeight = 580 }) => {
 
         fetchHistoricalData(start, end).finally(() => setIsLoading(false));
 
+        // Изменяем параметры подписки
         return metricsService.subscribeToMetric(
-            getSubscriptionKey(),
-            (newData) => {
-                console.log('Received WS update:', newData); 
-                if (!Array.isArray(newData)) {
-                    console.error('Expected array in WS update, got:', typeof newData);
+            metricName, // Теперь передаем просто имя метрики
+            { ...filters, device, source_id }, // Фильры отдельным параметром
+            (update) => { // Колбэк получает объект с данными
+                console.log('Received WS update:', update);
+
+                if (!update || !Array.isArray(update.data)) {
+                    console.error('Invalid update format:', update);
                     return;
                 }
 
@@ -176,7 +183,7 @@ const PrometheusChart = ({ metricInfo, chartHeight = 580 }) => {
                     const now = Date.now();
                     const cutoffTime = now - TIME_WINDOW_MS;
 
-                    const formattedNew = formatMetricData(newData)
+                    const formattedNew = formatMetricData(update.data)
                         .filter(point => point.timestamp >= cutoffTime);
 
                     const filteredPrev = prev.filter(point =>
@@ -194,15 +201,18 @@ const PrometheusChart = ({ metricInfo, chartHeight = 580 }) => {
                         : merged;
                 });
             },
-            1000,
-            { ...filters, device, source_id }
+            5000 // Интервал обновления (можно настроить)
         );
     };
 
 
     const stopRealtimeUpdates = () => {
         setIsLiveUpdating(false);
-        metricsService.unsubscribeFromMetric(getSubscriptionKey());
+        // Теперь отписываемся по метрике и фильтрам
+        metricsService.unsubscribeFromMetric(
+            metricName,
+            { ...filters, device, source_id }
+        );
     };
 
     const handleCustomRangeApply = () => {
@@ -215,6 +225,7 @@ const PrometheusChart = ({ metricInfo, chartHeight = 580 }) => {
         console.log('Metric changed:', { metricName, device, source_id, filters });
 
         let unsubscribe;
+
         const init = async () => {
             if (mode === 'realtime') {
                 unsubscribe = startRealtimeUpdates();
@@ -226,10 +237,14 @@ const PrometheusChart = ({ metricInfo, chartHeight = 580 }) => {
         init();
 
         return () => {
-            if (unsubscribe) unsubscribe();
-            stopRealtimeUpdates();
+            if (unsubscribe) {
+                unsubscribe(); // Вызываем функцию отписки
+            }
+            if (mode === 'realtime') {
+                stopRealtimeUpdates(); // Дополнительная очистка
+            }
         };
-    }, [mode, metricName, device, source_id, filters]);
+    }, [mode, metricName, device, source_id, JSON.stringify(filters)]); // Добавляем JSON.stringify для фильтров
 
     const metaInfo = [
         metricMeta.instance && `Instance: ${metricMeta.instance}`,
@@ -322,4 +337,4 @@ const PrometheusChart = ({ metricInfo, chartHeight = 580 }) => {
     );
 };
 
-export default PrometheusChart;
\ No newline at end of file
+export default PrometheusChart;
diff --git a/vite.config.js b/vite.config.js
index e391567..e8612bd 100755
--- a/vite.config.js
+++ b/vite.config.js
@@ -20,7 +20,6 @@ export default defineConfig({
       },
       '/api': {
         target: 'http://localhost:3000',
-        ws: true,
         changeOrigin: true,
         bypass(req, res, options) {
           console.log('Proxying request:', req.url);